If you would like to grow your own tall strong stems of cut flowers for harvest late this summer and in to the autumn months these are the perfect plants to grow they will flower from august and into october with each plant giving you approximately 5 6 stems for cut flowers they are ready to pick as soon as the first few flowers break bud which means start to show some colour when they get to this stage cut the stems quite low down around 15cm 6 from the ground level and remove the